Nortel Meridian Meridian 1 User manual

RPE Description, installation, and testing
Meridian 1
Remote Peripheral Equipment
Description, installation, and testing
Document Number: 553-2601-200
Document Release: Standard 4.00
Date: April 2000
Year Publish FCC TM
Copyright ©1990– 2000 Nortel Networks
All Rights Reserved
Printed in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant. This equipment has been tested
and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules, and the
radio interference regulations of Industry Canada. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at their own expense.
SL-1 and Meridian 1 are trademarks of Nortel Networks.

Page 3 of 60
RPE Description, installation, and testing
Revision history
April 2000 Standard 4.00. This is a global document and is up-issued for X11 Release
25.0x.
December 1994 Standard 3.00. Reissued for editorial changes.
December 1991 Standard 2.00. Reissued to include technical content updates.
August 1990 Standard 1.00. Reissued for compliance with Nortel Networks standard
164.0.

Page 4 of 60
553-2601-200 Standard 4.00 April 2000

Page 5 of 60
RPE Description, installation, and testing
Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Equipment configuration . . . . . . . . . . . . . . . . . . . . 9
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Carrier system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Carrier shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Circuit cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Emergency transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Equipment description . . . . . . . . . . . . . . . . . . . . . . 15
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Carrier shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PE shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
QPC62 1.5 Mbaud Converter Card . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
QPC63 Local Carrier Buffer Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
QPC65 Remote Peripheral Switch Card . . . . . . . . . . . . . . . . . . . . . . . 19
QPC66 2 Mbaud Converter Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
QPC67 Carrier Maintenance Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
QPC85, QPC190, and QPC355 5/12 V Converter Cards . . . . . . . . . . 20
QPC99 Carrier Interface Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
QBL14 Power Distribution Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Page 6 of 60 Contents
553-2601-200 Standard 4.00 April 2000
Assembly and installation . . . . . . . . . . . . . . . . . . . 23
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Carrier interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Land-based carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
General engineering considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Carrier specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
In-house RPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Microwave radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Network loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Telephone, consoles, and add-on modules . . . . . . . . . . . . . . . . . . . 51
Emergency transfer stations and trunks . . . . . . . . . . . . . . . . . . . . . 52
Transmission quality test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Span line fault locating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Page 7 of 60
RPE Description, installation, and testing
8
Description
Remote peripheral equipment (RPE) increases the 15 m (50 ft.) range of the
loop between the common equipment (CE) and peripheral equipment (PE)
shelves in an SL-1 system.
The increased range enables the PE to be placed closer to the stations it
serves, which in turn increases the serving range of the SL-1 system.
RPE uses a carrier link between the local and remote ends. The carrier link
may consist of one of the following:
— a wire pair with no repeaters or other interfaces (in-house IRPE)
— a digital carrier link meetingT1 interfacing specifications (such asNortel
Networks LD 1)
— a microwave radio link (which meets T1 interfacing specifications)
— a fiber-optic link (which meets T1 interfacing specifications)

Page 8 of 60 Description
553-2601-200 Standard 4.00 April 2000

Page 9 of 60
RPE Description, installation, and testing
14
Equipment configuration
Reference list
The following are the references in this section:
•Circuit card installation and testing (553-3001-211)
Carrier system
A block diagram of the basic RPE system is shown in Figure 1. A1.544 Mbps
multiplexed digital carrier system (such as LD-1), or a microwave radio link,
is required for each RPE system. A maximum of two network loops may be
connected through two RPE carrier shelves (one shelf at the local equipment
location, and one at the remote location). A complete RPE shelf (two network
loops) requires four digital carrier lines.
Carrier shelfThe same type of carrier shelf for the RPE is used at the local and remote
locations. The QSD6 (left-hand mounted) and QSD11 (right-hand mounted)
shelves may be mounted in any SL-1 peripheral equipment (PE) cabinet. The
power supply connector is a two-pin type. Each shelf has a power converter
card to derive its required voltages from a –48V supplyprovided by aQBL14
Power Distribution Box. All cables from the carrier shelves are
connectorized.
Each loop services a maximum of four PE shelves. RPE network loops are
fully assigned to RPE use, and no other PE shelves can be served by these
loops.

Page 10 of 60 Equipment configuration
553-2601-200 Standard 4.00 April 2000
Each loop requires four cable pairs (two carrier lines) between the carrier
shelf and the carrier system for transmission and signaling. A maximum of
two cable pairs is required for maintenance purposes. These are the
order-wire (OW) andfault-locating (FL) pairs, andare optional depending on
the distance between the carrier shelves and on the location of the office
repeater bay (ORB) in the system.
Each RPE system requires at least one ORB(see Figure 2) and line repeaters,
unless the remote equipment is within about 762 m (2500 ft) of the SL-1
equipment. Locating theORB at both local and remote ends of the carrier line
is strongly recommended. This effectively allows the isolation of the carrier
span from the SL-1.
An ORB provides the following:
— span line powering
— error monitoring
— fault-locating (FL) system access
— order-wire (OW) termination with digital distance dialing (DDD) access
— line looping
A typical RPEconfigurationis shown in Figure 3. Each RPE system requires
a carrier shelf at the local and remote locations. These are cabled to the SL-1
cross connect terminal through two NE-A25B cables.
Carrier shelves at the local equipment location and at the remote location are
connected to QPC50 network cards and peripheral equipment shelves,
respectively, through NE-A18QA connector cables.
Peripheralequipmentshelvesat theremotelocation are connectedtothecross
connect terminal through four NE-A25B connector cables in the same
manner as are regular SL-1 PE shelves. For cabling and termination
instructions, see the installation procedures for the system.
Two network loops connect to the carrier shelf. Each can serve a maximum
of four PE shelves. Circuit card positions 1 through 4 and 5 through 8 serve
network loops X and Y, respectively.

Equipment configuration Page 11 of 60
RPE Description, installation, and testing
Circuit cardsThe same circuit cards are used in the local and remote carrier shelves (see
Figure 3), except for the QPC63 (local) and the QPC65 (remote) cards. All
circuit cards have designated slot positions on the carrier shelves, and they
must be kept in these positions to function properly. The QPC62 and QPC99
cards have option switches on their circuit boards. Circuit card handling
procedures and option switch settings are given in Circuit card installation
and testing (553-3001-211).
Emergency transfer
Designated 500-type telephones can be cross connected through emergency
transfer units to outgoing trunks at the remote location. The telephones are
connected to these trunks when the normally operated relays of the
emergency transfer units release as a result of any of the following:
— loss of –48 V carrier shelf power
— loss of –48 V or ±10 V (under control of the QPC84 Power Monitor
circuit card)
— carrier failure
Note: Network loops are controlled independently.
— manual operation of emergency transfer switch on consoles
Note: This will not affect a remote location.
— manual operation of emergency transfer switch on the QPC84 circuit
card

Page 12 of 60 Equipment configuration
553-2601-200 Standard 4.00 April 2000
Figure 1
RPE block diagram
2 Mbyte
conv.
QPC66
Network
card
RPE carrier shelf at SL-1 location
Local
carrier
buffer
QPC63
Carrier
interface
QPC99
1.5 Mbyte
conv.
QPC62
Carrier
maint.
QPC67
Office
repeater
bay
(ORB)
Remote
per switch
QPC65
PE
shelves
1.5 Mbyte
conv.
QPC62
Carrier
interface
QPC99
Carrier
maint.
QPC67
2 Mbyte
conv.
QPC66
553-4062
Digital carrier
features
RPE carrier shelf at remote locationRPE carrier shelf at SL-1 location

Equipment configuration Page 13 of 60
RPE Description, installation, and testing
Figure 2
Possible ORB locations in the RPE system
Approx.
229 m
(750 ft)
(c) ORB at
remote end
OW
FLP
Approx.
229 m
(750 ft)
Approx.
914 m
(3000 ft)
(a) ORB
at local end
Order wire (OW)
Fault locate pari (FLP)
Approx.
1829 m
(6000 ft)
112 km (70 mi)
Approx.
229 m
(750 ft)
(b) ORB at
CO
Approx.
914 m
(3000 ft)
OW
FLP
OW
FLP
Approx.
914 m
(3000 ft)
(d) ORB at
both ends
OW
FLP
Approx.
229 m
(750 ft)
Approx.
1829 m
(6000 ft)
Local
equipment Remote
equipment
O
R
B
Local
equipment Remote
equipment
O
R
B
Local
equipment Remote
equipment
O
R
B
Local
equipment Remote
equipment
O
R
B
O
R
B
Approx.
229 m
(750 ft)
553-4063

Page 14 of 60 Equipment configuration
553-2601-200 Standard 4.00 April 2000
Figure 3
Typical RPE equipment configuration
Q
P
C
6 3 1
Q
P
C
6 2 2
Q
P
C
6 6 3
Q
P
C
9 9 4
Q
P
C
6 3 5
Q
P
C
6 2 6
Q
P
C
6 6 7
Q
P
C
9 9 8
Q
P
C
6 7 9
Q
P
C
8 5
10
E
FDC
Power Q
P
C
6 5 1
Q
P
C
6 2 2
Q
P
C
6 6 3
Q
P
C
9 9 4
Q
P
C
6 5 5
Q
P
C
6 2 6
Q
P
C
6 6 7
Q
P
C
9 9 8
Q
P
C
6 7 9
Q
P
C
3 5 5
10
E
FDC
Power
Designated card positions
RPE at remote location
QSD11 right-hand mount
(or QSD6 left-hand mount)
carrier shelf
(Loop X) (Loop Y)
NE-A18QA cables
to PE shelves
Loop X Loop Y
RPE at SL-1 location
Cross-connect
O
R
B
XYLoops
Designated
network
cards
SL-1 network shelf
553-4064
Dist
frame
Dist
frame

Page 15 of 60
RPE Description, installation, and testing
22
Equipment description
Reference list
The following are the references in this section:
•Meridian 1 equipment identification (553-3001-154)
Cabinets RPE equipment is housed in standard SL-1 cabinets. A QCA8, QCA37, or
QCA74 cabinet is required at the remote location to provide power for the
QBL14 Power Distribution Box that powers the carrier shelves. A QCA6,
QCA8, QCA23, QCA37, or QCA74 cabinet may be usedat the local location
to house the QBL14 Power Distribution Box.
The RPE carrier shelves may be installed in any SL-1 cabinet (except
QCA60). They must be within 3.8 m (12.5 ft) of the QBL14 Power
Distribution Box.
Carrier shelves
The following carrier shelves are available:
— QSD6 left-hand mount shelf
— QSD11 right-hand mount shelf

Page 16 of 60 Equipment description
553-2601-200 Standard 4.00 April 2000
Function
The carrier shelves accommodate the circuit cards listed in Table 1. These
cards can function only in the designated card positions shown in Figure 3.
Quantity
One shelf is required at the local and remote locations for each two network
loops.
Location
Any PE shelf position in a cabinet must be within 3.8 m (12.5 ft) of the
QBL14 Power Distribution Box that powers the shelf.
Table 1
Carrier shelf circuit cards
Location Product code Description Quantity
Local and
remote QPC62 QPC66
QPC67
QPC85, QPC190, QPC355
QPC99
1.5 Mbaud converter
2.0 Mbaud converter
Carrier maintenance
5/12-V converter
Carrier interface
2 per network loop
2 per network loop
1 per shelf
1 per shelf (Note)
2 per network loop
Local only QPC63 Local carrier buffer 1 per network loop
Remote only QPC65 Remote peripheral
switch 1 per network loop
Note:
QPC190 and QPC355 circuit cards can be used only in QSD11B series B and QSD6B series B
shelves or QSD11C and QSD6C shelves. QSD11B series A and QSD6B series A shelves only work with a
QPC85 circuit card. Using the QPC190 in the earlier vintage shelves will damage both the QPC190 itself
and the QPC99 carrier interface.

Equipment description Page 17 of 60
RPE Description, installation, and testing
Features
The carrier shelf features are as follows:
— steel and aluminum construction
— printed circuit backplane
— fully connectorized power and signaling connections
— international rack mounting standards (48.3 cm [19 in.])
— approximate weight of 15.9 kg (35 lbs) when fully equipped
PE shelves Left- or right-hand mount shelves are used. See Meridian 1 equipment
identification (553-3001-154) for a description of these.
QPC62 1.5 Mbaud Converter Card
Function
The QPC62 converts an SL-1 loop into two carrier loops. It contains
switch-selectable line equalizers.
Note: QPC62C converters, andconvertersof later vintage, must be used
when the 12 V option setting is required.
Quantity
Two are required for each network loop: onein the local carrier shelf,and one
in the remote carrier shelf.
Location
Place the QPC62 in the following positions:
— slot 2 for the first network loop in each carrier shelf
— slot 6 for the second network loop in each carrier shelf

Page 18 of 60 Equipment description
553-2601-200 Standard 4.00 April 2000
QPC63 Local Carrier Buffer Card
Function
The QPC63 performs the following functions:
— generates a 1.544-MHz clock from the 2.048-MHz clock
— provides enables and decodes outgoing and incoming data
— delays incoming data from the carrier so that its frame, relative to the
outgoing data frame, is equivalent to that returning from a peripheral
buffer
— relays line status information to the processor
— decodes line control information from the processor
Quantity
One is required for each network loop connected to the carrier shelf at the
local equipment location.
Location
Place the QPC63 in the following positions:
— slot 1 for the first network loop in the local carrier shelf
— slot 5 for the second network loop in the local carrier shelf

Equipment description Page 19 of 60
RPE Description, installation, and testing
QPC65 Remote Peripheral Switch Card
Function
Each SL-1 loop at a remote site has a remote peripheral switch (RPS) card
associated with it. The card provides:
— shelf, card, and line enables, along with the bypass bit to the shelves it
serves at the remote site
— cyclic scanning of the terminals it serves for incoming signaling
messages
— monitoring of timeslot 0 for outcoming messages from the peripheral
signaling (PS) card to the RPS or terminal
— assembling of incoming messages (RPS to PS)
Quantity
One is required for each network loop.
Location
Place the QPC65 in the following positions:
— slot 1 for the first network loop in the remote carrier shelf
— slot 5 for the second network loop in the remote carrier shelf
QPC66 2 Mbaud Converter Card
Function
The QPC66 converts two carrier loops into a single SL-1 loop.
Quantity
Two are required for each networkloop: one in the local carrier shelf, andone
in the remote carrier shelf.
Location
Place the QPC66 in the following positions:
— slot 3 for the first network loop in each carrier shelf
— slot 7 for the second network loop in each carrier shelf

Page 20 of 60 Equipment description
553-2601-200 Standard 4.00 April 2000
QPC67 Carrier Maintenance Card
Function
The QPC67 performs the following functions:
— conducts fault-locate testing, using an M-type (3017 Hz) fault-locate
filter
— detects DC for the fault-locate pair by means of DC-detection circuitry
— facilitates software maintenance testing, using loopback relays
— terminates and gives access to the order-wire pair through a jack and
binding posts on the faceplate
Quantity
One is required in each carrier shelf.
Location
Place the QPC67 in slot 9 in each carrier shelf.
QPC85, QPC190, and QPC355 5/12 V Converter Cards
Function
The QPC85, QPC190, and QPC355 cards convert –48 V dc to +5 V dc and
+12 V dc for the carrier shelves.
Quantity
One is required for each carrier shelf.
Location
Place the QPC85, QPC190 or QPC355 in slot 10 in each carrier shelf.
CAUTION
To avoid damage to the equipment, do not install QPC190 or QPC355
cards in QSD11B series A and QSD6B series A shelves; these shelves
only work with a QPC85 card. Use QPC190 or QPC355 cards only in
QSD11B series B and QSD6B series B shelves, or in QSD11C and
QSD6C shelves.